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4 votes
10) Solve using any method
10x+2y=42
5x+y=20

User Darkend
by
7.7k points

2 Answers

4 votes
The answer is no solution! Using substitution, you come to 20 = -21, which is a false statement.
10) Solve using any method 10x+2y=42 5x+y=20-example-1
User Mustapha GHLISSI
by
8.2k points
6 votes

Answer:

no solutions

Explanation:

10x+2y=42

5x+y=20

Multiply the second equation by -2 to use elimination

-2(5x+y)=20*-2

-10x -2y = -40

Add this to the first equation

10x+2y=42

-10x -2y = -40

--------------------------

0 = 2

This is never true. This means there are no solutions

User JohnMcG
by
8.7k points

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